使用Regex扫描子字符串并忽略大小写

Question

我的文字很长，我正在尝试对其进行扫描，以便在其中找到一些单词。我正在寻找可以解决问题的函数，但是会忽略大小写的敏感性。

非常重要：我无法将字符串更改为小写或大写！这是一个后期应用程序，如果我要更改它，回滚将非常棘手。

例：

str = "According to a new report from TechCrunch, Apple has acquired the photo technology startup SnappyLabs. The company is a one-man development team known for creating the SnappyCam app."

word = "the"

str.scan(/word/) # need to find "the" and "The"

更新

如何获取单词首次出现的字符串索引？

如果有人需要它，可以使用str =~ (/word/i)（感谢@steenslag）

Answer 1

str = "According to a new report from TechCrunch, Apple has acquired the photo technology startup SnappyLabs. The company is a one-man development team known for creating the SnappyCam app."

word = "the"

str.scan(/#{word}/i) # need to find "the" and "The"

正则表达式后的“ i”使其忽略大小写。